Parenthesized expressions (#8025)

* Add parser createParenthesizedExpressions option  …

When set to `true` we create `ParenthesizedExpression` nodes instead of
setting `extra.parenthesized`.

* Also update babel-parser.d.ts

packages/babel-parser/ast/spec.md

@@ -78,6 +78,7 @@ These are the core @babel/parser (babylon) AST node types.
   - [CallExpression](#callexpression)
   - [NewExpression](#newexpression)
   - [SequenceExpression](#sequenceexpression)
+  - [ParenthesizedExpression](#parenthesizedexpression)
   - [DoExpression](#doexpression)
 - [Template Literals](#template-literals)
   - [TemplateLiteral](#templateliteral)
@@ -936,6 +937,17 @@ interface SequenceExpression <: Expression {
 
 A sequence expression, i.e., a comma-separated sequence of expressions.
 
+## ParenthesizedExpression
+
+```js
+interface ParenthesizedExpression <: Expression {
+    type "ParenthesizedExpression";
+    expression: Expression;
+}
+```
+
+An expression wrapped by parentheses.
+
 ## DoExpression
 
 ```js